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White 140 mm PWM case fan with nine white blades and a white frame

be quiet!

be quiet! BL119 Silent Wings Pro 4 140mm PWM White case fan

SKU CH-7GWG-93VKQ MPN BL119

A 140mm PWM case fan delivering 95-100 CFM airflow at 2400 RPM with a fluid-dynamic bearing for quiet 36.8 dBA operation and a speed switch for three performance modes

  • Fan Counts1 Fan
  • TypeCase Fan
  • Fan Size140mm
  • Bearing TypeFluid Dynamic Bearing
  • RPM2400 RPM
  • Air Flow95-100 CFM

Option 140mm PWM

Le versioni barrate esistono, ma non sono disponibili qui.

Color White

  • Optimized blades deliver highest performance on radiators and heatsinks
  • Speed switch selects medium, high or ultra-high speed up to 2400 rpm
  • Small tip clearance and funnel-shaped outlet create extremely high air pressure
  • 6-pole motor with fluid-dynamic bearing reduces vibration for smooth operation
  • Separate mounting kits included for case or radiator installation

Purpose and audience

The be quiet! BL119 Silent Wings Pro 4 is a 140mm PWM case fan designed for builders who prioritise low noise and strong static pressure. Its fluid-dynamic bearing and 6-pole motor deliver smooth operation at speeds up to 2400 RPM. The white, non-LED frame suits clean, light-themed builds without adding visual distraction.

Who it suits and who it doesn't

This fan suits radiator and heatsink mounting where high static pressure matters, thanks to optimised blades and a funnel-shaped outlet. The three-position speed switch lets users cap RPM at medium, high or ultra-high levels. Buyers needing RGB illumination or a different frame colour should look elsewhere, as this model is strictly white with no lighting.

Capacity and headroom

Maximum airflow reaches 95-100 CFM at 36.8 dBA, providing ample headroom for dense fin stacks or restrictive radiators. At reduced speeds the fan becomes virtually inaudible while still moving useful air volume. The single 4-pin PWM connector limits control to one header per fan, so multi-fan arrays require a splitter or hub.

Punti di forza

  • Optimized blades deliver highest performance on radiators and heatsinks
  • Speed switch selects medium, high or ultra-high speed up to 2400 rpm
  • Small tip clearance and funnel-shaped outlet create extremely high air pressure
  • 6-pole motor with fluid-dynamic bearing reduces vibration for smooth operation
  • Separate mounting kits included for case or radiator installation

Caratteristiche tecniche

Brandbe quiet!
Fan Counts1 Fan
TypeCase Fan
Fan Size140mm
Bearing TypeFluid Dynamic Bearing
RPM2400 RPM
Air Flow95-100 CFM
Noise Level36.8 dBA at max RPM
Power Connector4-pin PWM
ColorWhite
LEDNon-LED
Peso di spedizione0.45 kg
Dimensioni del pacco203 × 140 × 38 mm

Altre versioni di questo modello

altri 3 nella stessa gamma

Stessa famiglia, con memoria, dissipatore o frequenza diversi — confronti prima di decidere.

Domande su questo articolo

Does the 4-pin PWM connector on this fan plug straight into a standard motherboard fan header?

Yes, the 4-pin PWM connector is compatible with standard motherboard fan headers for automatic speed control.

Will the 140mm frame and supplied mounting hardware let me replace an older 140mm fan on my radiator without new screws?

The fan includes individual mounting systems for both case and radiator use, so it fits standard 140mm radiator screw holes.

How can I verify the speed switch is actually changing the maximum RPM up to 2400 rpm after installation?

Use monitoring software or the BIOS to observe the reported fan speed; the switch selects medium, high or ultra-high profiles that top out at 2400 rpm.

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